Family: Asaphidae BURMEISTER 1843
Genus: Genus Xenasaphus JAANUSSON 1953
Xenasaphus devexus (EICHWALD 1840)
Age: Middle Ordovician
Locality: Wolhow river, St.Petersburg region, Russia
Family: Asaphidae BURMEISTER 1843
Genus: Genus Xenasaphus JAANUSSON 1953
Xenasaphus devexus (EICHWALD 1840)
Age: Middle Ordovician
Locality: Wolhow river, St.Petersburg region, Russia
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